import time
import random

DARTS = 1000 * 1000
hits = 0.0
start = time.perf_counter()

for i in range(1, DARTS + 1):
    x, y = random.random(), random.random()
    dist = pow(x * x + y * y, 0.5)
    if dist <= 1.0:
        hits += 1
pi = 4 * (hits / DARTS)
print("圆周率是：{}".format(pi))
print("运行时间是：{:.5f}s".format(time.perf_counter() - start))
